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Tip-triggered Thermal Cascade Manipulation of Magic Number Gold–Fullerene Clusters in the Scanning Tunnelling Microscope
Nano Letters ( IF 9.6 ) Pub Date : 2017-09-18 00:00:00 , DOI: 10.1021/acs.nanolett.7b02802 Dogan Kaya 1, 2 , Deliang Bao 3, 4 , Richard E. Palmer 5 , Shixuan Du 3 , Quanmin Guo 1
Nano Letters ( IF 9.6 ) Pub Date : 2017-09-18 00:00:00 , DOI: 10.1021/acs.nanolett.7b02802 Dogan Kaya 1, 2 , Deliang Bao 3, 4 , Richard E. Palmer 5 , Shixuan Du 3 , Quanmin Guo 1
Affiliation
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We demonstrate cascade manipulation between magic number gold–fullerene hybrid clusters by channelling thermal energy into a specific reaction pathway with a trigger from the tip of a scanning tunnelling microscope (STM). The (C60)m–Aun clusters, formed via self-assembly on the Au(111) surface, consist of n Au atoms and m C60 molecules; the three smallest stable clusters are (C60)7–Au19, (C60)10–Au35, and (C60)12–Au49. The manipulation cascade was initiated by driving the STM tip into the cluster followed by tip retraction. Temporary, partial fragmentation of the cluster was followed by reorganization. Self-selection of the correct numbers of Au atoms and C60 molecules led to the formation of the next magic number cluster. This cascade manipulation is efficient and facile with an extremely high selectivity. It offers a way to perform on-surface tailoring of atomic and molecular clusters by harnessing thermal energy, which is known as the principal enemy of the quest to achieve ultimate structural control with the STM.
中文翻译：
扫描隧道显微镜中的幻数金-富勒烯团簇的尖端触发热级联操纵。
我们通过用扫描隧道显微镜（STM）的尖端触发热能将热能引导到特定的反应途径中，从而证明了幻数金-富勒烯杂化簇之间的级联操纵。通过自组装在Au（111）表面上形成的（C 60）m -Au n团簇由n个Au原子和m C 60个分子组成。三个最小的稳定簇是（C 60）7 -Au 19，（C 60）10 -Au 35和（C 60）12 -Au 49。通过将STM尖端驱动到簇中，然后收缩尖端来启动操作级联。集群暂时的部分碎片化之后，进行了重组。自选正确数量的Au原子和C 60分子导致形成下一个魔术数簇。这种级联操作是高效且容易的，并且具有极高的选择性。它提供了一种利用热能对原子和分子簇进行表面剪裁的方法，众所周知，热能是寻求通过STM实现最终结构控制的主要敌人。
更新日期：2017-09-19
中文翻译：
扫描隧道显微镜中的幻数金-富勒烯团簇的尖端触发热级联操纵。
我们通过用扫描隧道显微镜（STM）的尖端触发热能将热能引导到特定的反应途径中，从而证明了幻数金-富勒烯杂化簇之间的级联操纵。通过自组装在Au（111）表面上形成的（C 60）m -Au n团簇由n个Au原子和m C 60个分子组成。三个最小的稳定簇是（C 60）7 -Au 19，（C 60）10 -Au 35和（C 60）12 -Au 49。通过将STM尖端驱动到簇中，然后收缩尖端来启动操作级联。集群暂时的部分碎片化之后，进行了重组。自选正确数量的Au原子和C 60分子导致形成下一个魔术数簇。这种级联操作是高效且容易的，并且具有极高的选择性。它提供了一种利用热能对原子和分子簇进行表面剪裁的方法，众所周知，热能是寻求通过STM实现最终结构控制的主要敌人。
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